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Roofing in Bethesda, MD: the Maryland path from license check to permit to historic review
Bethesda sits in Montgomery County, Maryland, so the rules that touch a roof are Maryland's and the county's, not Virginia's. This guide goes in the order a Bethesda owner meets them: the contractor license check, the county permit lanes, the historic review lane, and then who actually decides the roof, using the county and state pages, Census tables and NOAA storm rows.
- 4 steps in order: license, permit, historic review, ownership
- 76.6% of Bethesda renter households live in buildings of 5 or more units
- 50.6% of Bethesda homes were built before 1970
Step 1: the Maryland license check
In Maryland the contractor license comes before the permit. The Maryland Home Improvement Commission (MHIC), part of the Department of Labor, licenses home improvement contractors and salespersons, and its list of work that usually needs that license names "Roofs" under exterior work. Two details on its pages matter for Bethesda owners.
- The permit depends on it. Montgomery County’s permit pages state that a contractor must have an MHIC license to obtain a permit.
- The definition has an edge. The Commission says home improvement does not include work on commonly owned areas of condominiums or buildings with four or more single family units. For those buildings, ask both MHIC and the county how the rule applies.
How to verify any Maryland roofer
Look up the number
The Commission’s Home Improvement Public Query searches active licensees by contractor name, trade name, city or ZIP, or license number. Ask the roofer for the number first, then search it.
Read it on the contract
The Commission requires a written, signed contract that names the contractor, address and MHIC license number, describes the work and materials, and gives approximate start and completion dates.
The Commission says its Guaranty Fund “does not apply to salespersons, or unlicensed contractors.” It also says homeowners receive no money through the complaint process itself. Questions go to MHIC at 410-230-6231.
Step 2: county permit lanes
Montgomery County’s Department of Permitting Services (DPS) answers for a Bethesda address outside a municipality. Read together, its pages sort roof work into lanes. The table is a reading of what each page says, not a ruling on any job.
| Kind of work | What the DPS page says | Page read |
|---|---|---|
| Roof covering only | Listed under “No Permits Required,” with the caveat that the work still must meet the building code. | Home Improvements |
| Gutters, downspouts, siding | Same no-permit list. | Home Improvements |
| Storm or fire repair | A restore and repair permit is required before major repair; its scope excludes complete or substantial replacement. | Restore / Repair |
| Reconstruction beyond repair | An alteration permit is required before reconstruction or renovation other than a repair. | Alterations |
| Exterior work on a historic property | Listed under “Permits Required”; a historic area work permit comes first. | Home Improvements, Historic Area |
| Rooftop solar | DPS has a separate eSolar page for approved installers. | eSolar |
Montgomery County DPS pages opened October 19, 2026. The table does not say which lane a partial re-roof or a deck replacement falls in; DPS decides that.
The Home Improvements page says it leaves out municipality and homeowner association rules. The restore and repair page adds that the county does not enforce covenants and deed restrictions, so the association is a separate conversation. Our roof replacement and roof repair pages explain what each scope involves.
Step 3: the historic review lane
Historic review applies only if the property is listed on the Montgomery County Master Plan for Historic Preservation or the Locational Atlas, either as a site or inside a district. If it is not listed, Montgomery Planning’s guide says no historic area work permit (HAWP) is needed and the building permit question goes to DPS. If it is listed, the guide continues with four more steps, and three points matter for a roof.
Is the work covered?
The guide lists siding and roof replacement among common HAWP applications, and says ordinary maintenance does not need one.
HAWP before building permit
If a HAWP is needed, it must be filed before the building permit, through DPS, for Commission approval.
Plans carry forward
DPS says a HAWP approval does not replace the building permit, and the approved plans and letter go with that application.
What ordinary maintenance means on a roof
The Commission’s design guidelines (the text says “As of 2008”) quote its own rules: ordinary maintenance is work that “does not alter in any way the exterior features” of the property. In-kind replacement, they say, must “exactly match the old in design, color, texture, and materials.” The guidelines tie the review to Chapter 24A-8 of the County Code. DPS words the exemption as minor repairs using like materials and design, and Montgomery Planning lists roof repairs with matching materials and design as outside Commission review.
What the roof guidelines add
Section 5.0 of the guidelines says to preserve original roof materials and replace them only when necessary. It names slate, wood shingle, standing seam metal and tile as traditional, and asphalt shingles for 20th century buildings. It states: “Replacement in-kind is encouraged.”
Where the sources are silent
None of the pages defines a square footage that turns a repair into a replacement, or says whether a like-for-like full re-roof counts as ordinary maintenance. The county code text itself was not available to read. Ask the Historic Preservation Office before ordering materials; see our metal roof and materials pages for what each covering involves.
Planning’s pages add that some municipalities may review changes before a HAWP, and name Chevy Chase Village, Garrett Park, Kensington, Somerset and Takoma Park among them. If your street is inside one of them, ask the town first.
Step 4: who owns the roof in Bethesda
The Census Bureau classes Bethesda as a census-designated place in Montgomery County. Its American Community Survey 2024 five-year estimates (2020 to 2024) count 27,937 occupied homes there: 17,868 owner-occupied and 10,069 renter-occupied. The table counts households, so it shows who lives under a roof, not who owns the building.
| Building type | Owner households | Renter households | Renter share |
|---|---|---|---|
| Detached house | 13,688 | 1,702 | 11.1% |
| Attached home (townhouse) | 762 | 333 | 30.4% |
| 2 to 4 units | 54 | 320 | 85.6% |
| 5 to 19 units | 232 | 767 | 76.8% |
| 20 to 49 units | 529 | 468 | 46.9% |
| 50 or more units | 2,568 | 6,479 | 71.6% |
| Mobile home, boat, RV | 35 | 0 | 0.0% |
Census Bureau American Community Survey 2024 five-year estimates, table B25032 for Bethesda, MD; renter share computed from the table. The table does not separate condominium buildings from rental buildings.
Owners: houses dominate
76.6% of owner households (13,688) live in a detached house, and only 18.6% (3,329) own in a building of five or more units. For those owners the county and historic lanes above are the main path.
Renters: large buildings dominate
76.6% of renter households (7,714) are in buildings of five or more units, and 64.3% (6,479) are in buildings of 50 or more. A landlord, manager or board decides those roofs, and the MHIC definition above leaves out common areas of condominiums.
The age of the stock
The same survey counts 30,095 Bethesda homes and puts the median build year at 1970. It counts homes, not roofs.
| Year built | Homes | Share |
|---|---|---|
| 1939 or earlier | 2,496 | 8.3% |
| 1940 to 1949 | 2,488 | 8.3% |
| 1950 to 1959 | 6,033 | 20.0% |
| 1960 to 1969 | 4,225 | 14.0% |
| 1970 or later | 14,853 | 49.4% |
Census Bureau ACS 2024 five-year estimates, tables B25034 and B25035, Bethesda, MD; 1970 or later is the sum of the six newer rows. The 1950s are the largest single decade.
The MHIC page also notes the federal lead renovation rule for residences built before 1978, which it says applies to work affecting 20 square feet of exterior space. Ask any roofer how it applies to a given job.
What NOAA logged under the Bethesda label
The NOAA Storm Events Database files for 2015 through 2025, downloaded October 19, 2026, hold 854 Montgomery County rows: 469 thunderstorm wind, 166 flood, 144 flash flood, 59 hail, 9 lightning and 7 tornado. Rows whose begin location is labeled Bethesda number 15.
- Thunderstorm wind: 11 rows on 9 dates, ten at 50 knots and one at 65 knots, all estimated gusts.
- Hail: one row, 1.75 inches, on June 2, 2019.
- Flash flood: 3 rows.
The label is a National Weather Service reference point, not the edge of the community, and the files do not say whether any roof was damaged. For how a claim fits in, see our roofing insurance explainer.
Questions to settle before you compare Bethesda quotes
License and contract
- What is the roofer’s MHIC license number, and does the query show it active?
- Does the contract name the materials and give start and completion dates?
- Who is listed on any permit as responsible for the work?
County and historic
- Which DPS lane covers the scope, covering only or repair after damage?
- Is the property on the Master Plan or inside a historic district?
- Would the new covering match the old in design, color, texture and materials?
Association and ownership
- Is the roof yours, or a common element under the documents?
- Does a town or association review work before the county?
- Who signs the contract?
Roofers of Arlington installs, repairs and replaces roofs, including flat and metal systems; the services page lists what is covered. Book a phone consultation to talk through a Bethesda roof: we would ask your address, the building type, what is visible from the ground, and which of the documents above you hold. Arlington County has a different permit table, set out on our Arlington hub, so do not carry its numbers to Maryland. See also service areas and nearby Silver Spring.
Material pages for this area
Maryland and county pages read, with dates
Every source was opened on October 19, 2026. Chapter 24A of the County Code was not available to read, so the ordinary maintenance wording comes from the Commission’s own design guidelines.
- Maryland Department of Labor: Home Improvement Commission (MHIC), with its What is Home Improvement, contracts and complaint pages
- MHIC Home Improvement Public Query (page updated May 28, 2026)
- Montgomery County DPS: Home Improvements
- DPS: Residential Restore / Repair, Alterations and Historic Area Permit Process
- Montgomery Planning: Historic Area Work Permits (last updated May 5, 2026) and its step-by-step guide
- Historic Preservation Commission design guidelines: Chapter 1, Purpose and Chapter 3, General Rehabilitation (Roofs, section 5.0)
- Census Bureau American Community Survey 2024 five-year estimates, tables B25003, B25032, B25034 and B25035, Bethesda, MD
- NOAA NCEI Storm Events Database, bulk detail files 2015 to 2025
Questions people ask
Does replacing the shingles on a Bethesda house need a Montgomery County permit?
The county's Home Improvements page lists "Roof (covering only)" among work that "most likely will not need a permit." The same page says the list does not include municipality or association rules, and that exempt work must still meet the building code. For a historic property or a storm-damage repair, the lanes below differ, so ask the Department of Permitting Services at MC 311, 240-777-0311.
How do I check whether a roofer holds a Maryland home improvement license?
The Maryland Home Improvement Commission runs a public query that searches active licensees by personal name, trade name, city or ZIP, or license number. Maryland also requires the contract to carry the contractor's name, address and MHIC license number. The Commission answers questions at 410-230-6231 or 1-888-218-5925, including about disciplinary history.
Is storm damage repair treated differently from a straight re-roof by the county?
The county's restore and repair permit page says a permit is required before major repair of a building damaged by fire, storm, flood or earthquake. It also says that permit covers work on an element and does not include complete or substantial replacement. Which lane your job falls in is for DPS to say.
What does ordinary maintenance mean for a roof on a historic Bethesda property?
The Historic Preservation Commission's design guidelines define ordinary maintenance as work that "does not alter in any way the exterior features" of the property. Montgomery Planning lists roof repairs with materials and design matching what is in place as outside HPC review, while its step guide names roof replacement as a common application. The sources do not draw a square-foot line, so ask the Historic Preservation Office.
Does Bethesda have its own permit office like a town would?
The Census Bureau classes Bethesda as a census-designated place, a statistical area rather than a town. Montgomery County DPS is the permit office on its pages. Some nearby municipalities, such as Chevy Chase Village, Somerset and Garrett Park, are named by the Historic Preservation staff as places that may need to review work first, so confirm which side of a boundary your street is on.
Who decides the roof on a Bethesda condominium or apartment building?
Not the household underneath. The Census counts 9,047 Bethesda homes in buildings of 50 or more units, and Maryland's home improvement definition leaves out common areas of condominiums. The condominium documents, the board or the owner decide, and the county does not enforce covenants. Ask for the documents in writing.
How many severe storms has NOAA logged under the Bethesda label?
In the NOAA Storm Events files for 2015 through 2025, Montgomery County rows labeled Bethesda number 15: 11 thunderstorm wind, 3 flash flood and 1 hail event. Ten of the wind rows are 50 knots and one is 65 knots, all estimated gusts. The label is a reference point, not the boundary of the community.
Talk through your roof with Roofers of Arlington
Share the address, what you are seeing on the roof and the decision you need to make. We will tell you what to expect before anything is scheduled.